Liquid crystal display device having a container module with a novel structure

ABSTRACT

A liquid crystal display has a mold frame divided into several parts. The liquid crystal display device includes a display unit for displaying an image, a back light assembly having a light source for generating a light, a light guiding plate for guiding the light, and a light focusing portion for focusing the light, and a mold frame divided into a first frame and a second frame. The mold frame receives the display unit and the back light assembly. The first frame receives the light guiding plate and the light focusing portion and the second frame receives the light source. A reflection sheet is integrally formed at an inner surface of the second frame so as to perform the function of a lamp reflector. Accordingly, a lamp cover is not required so that the number of parts and the manufacturing cost are reduced. A lamp can be exchanged by simply separating the second frame from the mold frame, so the fault of the light source caused by the friction with other elements is reduced when exchanging the lamp.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a liquid crystal display device,more particularly, to a liquid crystal display device having a containermodule with a novel structure, in which a mold frame having a lightsource therein can be divided into several parts and a lamp reflectorfunction is added to the mold frame, thereby reducing the number ofparts and facilitating the assembling and repairing work of a lamp.

[0003] 2. Description of the Related Arts

[0004] A cathode ray tube is generally used as a monitor in a televisionset, a measuring instrument and an information appliance. Since thecathode ray tube has a relatively heavy weight and a large size, thecathode ray tube does not match with the trend of the miniaturizationand light weight requirements of the electronic appliance.

[0005] In order to solve the above problem, a liquid crystal displaydevice, which displays information by using the electrical and opticalfeatures of a liquid crystal filled in a liquid crystal panel, isdeveloped. The liquid crystal display device not only can meet theminiaturization and light weight requirements of the electronicappliance, but also can reduce the electric power. Recently, the liquidcrystal display device is used in a flat display panel device.

[0006] The liquid crystal of the liquid crystal display device filledbetween a TFT (thin film transistor) substrate and a color filtersubstrate is a light receiving material which displays information in ascreen by adjusting the amount of light incident from an exterior, sothe liquid crystal display device requires a separate light source, suchas a back light assembly for providing the liquid crystal panel withlight.

[0007]FIG. 1 shows a conventional liquid crystal display device equippedwith the back light assembly.

[0008] Referring to FIG. 1, the liquid crystal display device comprisesa display unit 10, the back light assembly 20 and a chassis 30.

[0009] The display unit 10 includes a TFT substrate (not shown), a colorfilter substrate (not shown) and a liquid crystal (not shown) filledbetween the TFT substrate and the color filter substrate. An imagesignal is applied to a transistor of the TFT substrate through a sourceand a gate of the TFT substrate. At this time, the liquid crystalreceives an electric signal and adjusts the amount of the light suppliedfrom the back light assembly so as to display the image in a screen.

[0010] The back light assembly 20 is provided below the display unit 10for uniformly supplying the light to the display unit 10.

[0011] The back light assembly 20 includes a light guiding plate 21 forguiding the light, a light source 25 which is installed at a side of thelight guiding plate 21 so as to radiate the light, a reflection plate 26which is installed at a lower side of the light guiding plate 21 so asto reflect the light radiated from the light source 25 and opticalsheets 27 which is installed on an upper portion of the light guidingplate 21 so as to diffuse and collect the light transferred from thelight guide plate 21.

[0012] The light source 25 includes a lamp 22 for supplying the light, apair of lamp holders 23 which are inserted into both ends of the lamp 22in order to protect the lamp 22, a lamp cover 24 which surrounds thelamp 22 and reflects the light radiated from the lamp 22 towards thelight guiding plate 21 in order to improve the light efficiency, and awire (not shown) for electrically connecting the lamp 22. The lamp cover24 is made of a metal, such as brass. An inner portion of the lamp cover24 is coated with silver (Ag) for reflecting the light.

[0013] A mold frame 30 fixedly supports the display unit 10 and the backlight assembly 20.

[0014] The mold frame 30 has a hexagonal box shape and an upper portionthereof is opened. The mold frame 30 is formed at an inner portionthereof with a receiving space. A stepped jaw portion is continuouslyformed from an upper portion of the receiving space to a lower portionof the receiving portion. Accordingly, a peripheral portion of the lightguiding plate 21 and the light source 25, which are positioned in thereceiving space, are supported by a lateral portion of the mold frame30, and the optical sheets 27 and the display unit 10 are sequentiallyreceived into the stepped jaw portion formed at the upper portion of themold frame 30.

[0015] However, in the conventional liquid crystal display device, themold frame 30 and the lamp cover 24 are separately manufactured due tothe functional difference between them, though they correspondingly makecontact with each other. This increases the numbers of parts.

[0016] In addition, since the light source 25 is slidably inserted intothe mold frame 30, the assembling work is very difficult. Furthermore,the light source 25 can be damaged by contacting other parts when thelight source 25 is inserted into or separated from the mold frame 30 forexchanging the lamp.

SUMMARY OF THE INVENTION

[0017] The present invention has been made to solve the problem of theprior art, and accordingly, it is a first object of the presentinvention to provide a liquid crystal display device in which a moldframe can be divided into several parts and a lamp reflector function isadded to the mold frame.

[0018] A second object of the present invention is to provide acontainer module divided into several sections. Some of the dividedsections can function as a lamp reflector.

[0019] To accomplish the first object of the present invention, there isprovided a liquid crystal display device including a display unit fordisplaying an image, a back light assembly having a light source forgenerating a light, a light guiding plate for guiding the light, and alight focusing portion for focusing the light, and a mold frame dividedinto a first frame and a second frame. The mold frame receives thedisplay unit and the back light assembly. The first frame receives thelight guiding plate and the light focusing portion and the second framereceives the light source. A reflection sheet is integrally formed at aninner surface of the second frame so as to function as a lamp reflector.

[0020] To accomplish the second object of the present invention, thereis provided a container module comprising a first frame for receiving adisplay unit that displays an image and a second frame for receiving alight source that supplies a light to the display unit. The first frameincludes a bottom surface, side walls vertically formed at peripheralportions of the bottom surface except for one peripheral portion of thebottom surface, and a supporting member for supporting the second frame.The second frame is detachably coupled to the supporting member and isprovided at an inner portion thereof with a lamp reflector.

[0021] According to the present invention, a lamp cover for reflectingthe light radiated into a rear side of a lamp into the light guidingplate is not required, so the number of parts and the manufacturing costof the liquid crystal display device can be reduced, improving theworking efficiency. In addition, the lamp can be exchanged by simplyseparating the second frame, so the light source can be protected fromdamage when exchanging the lamp.

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above objects and other advantages of the present inventionwill become more apparent by describing in detail preferred embodimentsthereof with reference to the attached drawings, in which:

[0023]FIG. 1 is a schematic sectional view showing a conventional liquidcrystal display device;

[0024]FIG. 2 is an exploded perspective view showing a liquid crystaldisplay device according to an embodiment of the present invention;

[0025]FIG. 3 is an exploded perspective view showing a mold frameaccording to an embodiment of the present invention;

[0026]FIG. 4 is a perspective view showing the first embodiment of asecond frame according to the present invention;

[0027]FIG. 5 is a sectional view of “A₁-A₂” portion shown in FIG. 4;

[0028]FIG. 6 is a perspective view showing the second embodiment of asecond frame according to the present invention;

[0029]FIG. 7 is a sectional view of “A₁-A₂” portion shown in FIG. 6;

[0030]FIG. 8 is a sectional view of “B₁-B₂” portion shown in FIG. 6; and

[0031]FIG. 9 is a perspective view showing a first frame assembled witha second frame.

DETAILED DESCRIPTION OF THE INVENTION

[0032] Hereinafter, the present invention will be described in detailwith reference to the accompanying drawings. In this application, alength direction of a lamp of a liquid crystal display device isreferred to a transverse direction and a vertical direction of the lampis referred to a longitudinal direction. In addition, in the liquidcrystal display device, a first portion in which a liquid crystaldisplay panel is positioned is referred to an upper portion and a secondportion in opposite to the first portion is referred to a lower portion.

[0033]FIG. 2 shows an exploded view of the liquid crystal display devicehaving a mold frame that can be divided into several parts.

[0034] Referring to FIG. 2, the liquid crystal display device 100 has aliquid crystal display module 700 for displaying an image by receivingan image signal and a case part 200 for receiving the liquid crystaldisplay module 200.

[0035] The liquid crystal display device 700 includes a display unit 400for displaying the image, a back light assembly 500 for supplying thelight, and a mold frame 600 for fixedly securing the display unit 400and the back light assembly 500. The case part 200 includes a front case210 and a rear case 220.

[0036] The display unit 400 includes a liquid crystal display panel 410for displaying the image, a source side printed circuit board 420 forapplying a driving signal to a data line, a source side tape carrierpackage 430 which determines the time for applying the data line drivingsignal, a gate side printed circuit board 440 for applying a drivingsignal to a gate line, and a gate side tape carrier package 450 thatdetermines the time for applying the gate line driving signal. Theliquid crystal display panel 410 consists of a TFT substrate positionedat a lower portion, a color filter substrate positioned at an upperportion and a liquid crystal formed between the TFT substrate and thecolor filter substrate.

[0037] The image signal is applied to a transistor of the TFT substratethrough a source portion and a gate portion of the TFT substrate. Atthis time, the liquid crystal receives an electric signal and adjuststhe amount of the light supplied from the back light assembly 500thereby forming the image.

[0038] The back light assembly 500 is positioned below the display unit400 for uniformly supplying the light to the display unit 400.

[0039] The back light assembly 500 has a light source 510, a lightguiding plate 520, a reflection plate 530 and optical sheets 540.

[0040] The light source 510 includes a linear lamp 512 installed at aside of the liquid crystal display module 700 so as to generate thelight, a pair of lamp holders 514 which are inserted into both ends ofthe lamp 512 so as to protect the lamp 512, and a wire 516 forelectrically connecting the lamp 512 with an outer electrical source.

[0041] The light guiding plate 520 has a size corresponding to the sizeof the liquid crystal display panel 410 of the display unit 400 and ispositioned below the liquid crystal display panel 410 so as to guide thelight towards the display unit 400 while changing the light route. Thethickness of the light guiding plate 520 gradually decreases as it goesaway from the light source 510.

[0042] The reflection plate 530 is positioned below the light guidingplate 520. The reflection plate 530 reflects the light leaking from thelight guiding plate 520 toward the light guiding plate 520 therebyimproving the light efficiency. In addition, the plurality of opticalsheets 540 are positioned above the light guiding plate 520. The opticalsheets 540 makes the brightness of the light supplied into the liquidcrystal display panel 410 uniform.

[0043] The display unit 400 and the back light assembly 500 are fixedlysecured by the mold frame 600. The mold frame 600 has a substantiallyhexahedrall shape with an open upper face. One side portion of the moldframe 600, in which the light source 510 is positioned, can be assembledwith and disassembled from the mold frame 600. Accordingly, the moldframe 600 consists of a first frame 610 for receiving the display unit400 and the back light assembly 500 except for the light source 510 anda second frame 660 for receiving the light source 510. A lamp reflectoris integrally formed at an inner side wall of the second frame 660 sothat the number of parts can be reduced as compared with theconventional liquid crystal display device.

[0044] A chassis 300 is provided to fix printed circuit boards 420 and440 of the display unit 400 and the tape carrier packages 430 and 450 tothe mold frame 600.

[0045] The chassis 300 has the same hexahedral shape as the mold frame600 with an opening on its upper face so as to expose the liquid crystaldisplay panel 410. A side wall of the chassis 300 is vertically bent soas to cover an upper peripheral portion of the liquid crystal displaypanel 410.

[0046] The assembling of the liquid crystal display device 100 is asfollows.

[0047] Firstly, the back light assembly 500 is fixed to the mold frame600. After that, the display unit 400 is rested on the back lightassembly 500. Then, printed circuit boards 420 and 440 connected throughtape carrier packages 430 and 450 are bent along an outer surface of theside wall of the mold frame 600 in such a manner that the printedcircuit boards 420 and 440 can be rested in the opening portion of themold frame 600 or on the upper portion the side wall of the mold frame600. Then, the chassis 300 is coupled to the mold frame 600 so as to fixthe display unit 400 and the back light assembly 500 to the mold frame600.

[0048] After assembling the liquid crystal display module as mentionedabove, the liquid crystal display module is accommodated between thefront case 210 and the rear case thereby fabricating the liquid crystaldisplay device 100.

[0049]FIG. 3 shows an exploded view of the mold frame 600 according toone embodiment of the present invention.

[0050] Referring to FIG. 3, the mold frame 600 has the first frame 610and the second frame 660. The first frame 610 receives the display unit400, the light guiding plate 520, the reflection plate 530 and afocusing device 540. The second frame 660 receives the light source 510and is connected to the first frame 610.

[0051] The first frame 610 includes a bottom surface and first, secondand third side walls 620, 630 and 640 that are vertically formed at sideperipheral portions of the bottom surface except for one side peripheralportion of the bottom surface. In addition, a supporting member 650 forreceiving the second frame 660 is formed at one side peripheral portionof the bottom surface in which the side wall is not formed. The secondframe 660 is positioned at a side surface of the supporting member 650and has an upper surface corresponding to an upper surface of the first,second and third side walls 620, 630, and 640. The second frame 660 hasa length corresponding to a length of the supporting member 650, a widthcorresponding to an extending length of the bending portion of thesupporting member 650 and a height corresponding to the first, secondand third side walls 620, 630 and 640. Accordingly, the first, secondand third side walls 620, 630 and 640 of the first frame 610 and thesecond frame 660, positioned in a space defined by the supporting member650 and end portions of the first and second side walls 620 and 630,make a receiving space of the mold frame 600 that receives the displayunit and the back light assembly.

[0052] The supporting member 650 is transversely positioned in oppositeto the third side wall 640 of the first frame 610 and both ends thereofare vertically bent towards the first and second side walls 620 and 630.Accordingly, the wire for supplying the electric power to the lamp ofthe light source 510 received in the second frame 660 can be withdrawnto the exterior.

[0053] A first fixing part fixing and supporting the second frame 660 isintegrally formed on the upper surface of the supporting member 650.Also, a second fixing portion that is detachably coupled to the firstfixing portion is integrally formed on the outer surface of the secondframe 660. As an embodiment of the first fixing portion, a plurality ofcoupling hooks 655 are integrally formed on the upper surface of thesupporting member 650. Each of the coupling hooks 655 includes a fixingprojection 651 which is protruded from the upper surface of thesupporting member 650 and a coupling hole 652 perforating the fixingprojection 651. As an embodiment of the second fixing part, a pluralityof coupling projections 690 are integrally formed on the outer surfaceof the second frame 660. Therefore, the second frame 660 is fixed to thesupporting member 650 by inserting the coupling projections 690 into thecoupling holes 652, and separated from the supporting member 650 bypulling out the coupling projections 690 from the coupling holes 652.Accordingly, the second frame 660 is detachably coupled to thesupporting member 650.

[0054] In addition, a plurality of supporting surfaces for supportingthe focusing device 540 and the display unit 400 are formed on the uppersurface of the first, second and third side walls 620, 630 and 640. Thesupporting surfaces have stepped shapes towards the bottom surface ofthe first frame 610. The upper surface of the second frame 660 has aplurality of supporting surfaces for supporting the focusing device 540and the display unit 400. The supporting surfaces have stepped shapestowards the bottom surface of the second frame 660. Accordingly, thesupporting surfaces having the stepped shapes identical to that of thefirst to third side walls 620, 630 and 640 are formed on the uppersurface of the second frame.

[0055] A first groove 670 for receiving the lamp of the light source 510is transversely formed on the inner surface of the second frame 660,faced with the third side wall 640, and a second groove 680 forreceiving a lamp wire is formed on the outer surface of the second frame660 symmetrical to the inner surface of the second frame 660. Aplurality of coupling projections 690 corresponding to the couplinghooks 655 is integrally formed with the second frame 660 below thesecond groove 680. The following explains various embodiment of thesecond frame 660 in detail.

[0056]FIG. 4 shows the first embodiment of the second frame according tothe present invention. FIG. 5 is a sectional view of “A₁-A₂” portionshown in FIG. 4.

[0057] Referring to FIGS. 4 and 5, the second frame 660 receiving thelight source 510 has a first groove 670 receiving the lamp on a side anda second groove 680 receiving the lamp wire on the other side.

[0058] The first groove 670 has predetermined width and depth and isformed in the length direction of the second frame 660. Accordingly, thesectional shape of the first groove 670 has a substantially rectangularshape defined by a bottom portion 670 a, a side portion 670 b and acover portion 670 c. The other side portion of the first groove 670positioned in opposite to the side portion 670 b is open. The lampholders 514 are positioned at both ends of the first groove 670 forsupporting the lamp 512 of the light source 510. The width and depth ofthe first groove 670 are corresponding to the size of the lamp holder514. The lamp 512 is positioned in the first groove 670 in thelengthwise direction of the first groove 670 and both ends of the lamp512 are coupled the lamp holders 514.

[0059] In addition, the lamp reflector 518 for reflecting the lighttowards the light guiding plate 520 is integrally formed with the innerportion of the first groove 670. The lamp reflector 518 surrounds thebottom portion 670 a, the side portion 670 b and the cover portion 670 cof the first groove 670 except for a portion corresponding to the lampholder 514. Preferably, a reflecting sheet made of polyethyleneterephthalate is coated on the bottom portion 670 a, the side portion670 b and the cover portion 670 c of the first groove 670.

[0060] The second groove 680 is formed on a side symmetric to the sideof the second frame on which the first groove 670 is formed, shaping asquare-groove which is cut out along the length of the second frame 660,having the predetermined width and depth. A connecting member 516 aelectrically connected to the lamp 512 is located inside the secondgroove 680.

[0061]FIG. 6 shows the second embodiment of the second frame accordingto the present invention. FIG. 7 is a sectional view of “A₁-A₂” portionshown in FIG. 6 and FIG. 8 is a sectional view of “B₁-B₂” portion shownin FIG. 6.

[0062] Referring to FIGS. 6, 7 and 8, the second frame 660 receiving thelight source 510 has a first groove 670 receiving the lamp on a side anda second groove 680 receiving the lamp wire on the other side.

[0063] The first groove 670 of this embodiment omits the bottom portion670 a thereby reducing the weight of the second frame 660. Accordingly,as shown in FIG. 7, a first portion of the first groove 670, in whichthe lamp holder 514 is positioned, has substantially rectangular shapedefined by the bottom portion 670 a, the side portion 670 b, the coverportion 670 c and the other side of the first portion opposite to theside portion being open. However, as shown in FIG. 8, a second portionof the first groove 670, in which the lamp 512 is positioned, has onlythe side portion 670 b and the cover portion 670 c.

[0064] At this time, the lamp reflector 518 is attached to the sideportion 670 b and the cover portion 670 c so that the light generatedfrom the lamp 512 can be reflected towards the light guiding plate 520.However, since the bottom portion 670 a is open, the light is notreflected in the bottom portion area. For this reason, the reflectionplate 530 preferably extends up to the lower portion of the lamp 512beyond the lower portion of the light guiding plate 520. The extendedreflection plate 530 allows the light, which is radiated into the lowerportion of the second frame from the lamp 512, to be reflected towardsthe light guiding plate 520 so that the reflecting efficiency of thelight can be constantly maintained.

[0065] In the conventional liquid crystal display device, the mold frameand the lamp cover are separately manufactured though they arecorresponding to each other, increasing the number of parts. However, inthe liquid crystal display device of the present invention, the moldframe functions not only as a receiving container, but also as areflector for reflecting the light generated from the lamp, reducing thenumber of the parts and improving the working efficiency.

[0066] The assembling of the mold frame 600 capable of dividing intoseveral parts is as follows.

[0067]FIG. 9 shows the first frame 610 assembled with the second frame660.

[0068] Referring to FIG. 9, the lamp 512 and the lamp holder 514 areinserted into the first groove 670 formed in the inner portion of thesecond frame 660. A cold wire 516 a connected to a cold electrode of thelamp 512 is received in the wire groove 680 formed in the outer portionof the second frame 660 and is connected to an inverter (not shown). Onthe other hand, a hot wire 516 b connected to a hot electrode of thelamp 512 is connected to the inverter through the side portion of thelamp holder 514.

[0069] The coupling projections 690 formed at the outer portion of thesecond frame 660 are correspondingly coupled to the coupling hooks 655integrally formed with the supporting portion 650 of the first frame610. At this time, the stepped supporting member formed on the upperportions of the first and second side walls 620 and 630 of the firstframe 610 is matched with the stepped supporting member formed on theupper surface of the second frame 660. In this manner, the mold frame600 is assembled.

[0070] On the other hand, when exchanging the lamp 512, the second frame660 is firstly separated from the mold frame 600 by separating thecoupling hooks 655 from the coupling projections 690. Thereafter, thelamp 512 received in the first groove 670 of the second frame 660 isexchanged. Since the lamp 512 can be exchanged by simply separating thesecond frame 660, the light source 510 can be prevented from theexternal impact while the lamp 512 is being exchanged, reducing thefault of the light source 510 caused by the friction with otherelements.

[0071] Though one second frame 660 is described in this application, ifthe light source 510 is inserted into both sides of the light guidingplate 520, two second frames 660 can be used. In this case, the firstframe 610 has a pair of the side walls and a pair of supporting members.Two second frames 660 are coupled to the pair of supporting members,respectively.

[0072] As described above, according to the present invention, the moldframe is divided into several parts and the lamp reflector is attachedto the groove of the divided mold frame. In addition, after receivingthe light source without the lamp cover, the divided mold frames areassembled. Therefore, the mold frame functions as a container forreceiving the liquid crystal display module and as the lamp cover.Accordingly, the number of the parts for the liquid crystal displaydevice can be reduced and the manufacturing cost can be saved. Inaddition, the assembling steps and the repairing work of the liquidcrystal display device can be simplified. Furthermore, since the lampcan be exchanged by simply separating the second frame having the lightsource, the fault of the light source caused by the friction with otherelements can be reduced when exchanging the lamp.

[0073] Although preferred embodiments of the invention have beendescribed, it will be understood by those skilled in the art that thepresent invention should not be limited to the described preferredembodiment, but various changes and modifications can be made within thespirit and scope of the invention as defined by the appended claims.

What is claimed is:
 1. A liquid crystal display device, comprising: adisplay unit for displaying an image; a back light assembly including alight source for generating a light, a light guiding plate installed ata side of the light source so as to uniformly radiate the lightgenerated from the light source into the display unit and a lightfocusing means installed above the light guiding plate so as to focusthe light transferred through the light guiding plate to a surface ofthe display unit; and a mold frame having a first frame for receivingthe display unit, the light guiding plate and the light focusing meansand a second frame for receiving the light source.
 2. The liquid crystaldisplay device as claimed in claim 1 , wherein the light source includesa lamp for radiating the light, a lamp supporting member that isinserted into both ends of the lamp so as to support the lamp, and aconnecting member that is electrically connected to the lamp.
 3. Theliquid crystal display device as claimed in claim 1 , further comprisinga reflection plate installed below the light guiding plate so as toreflect the light incident from the light guiding plate towards thedisplay unit.
 4. The liquid crystal display device as claimed in claim 1, wherein the first frame includes a bottom surface, side walls that arevertically formed at side peripheral portions of the bottom surfaceexcept for one side peripheral portion of the bottom surface and asupporting member installed at the side peripheral portion of the bottomsurface, in which the side wall is not formed, so as to support thesecond frame, the second frame being installed in an inner side of thesupporting member, the supporting member having an upper surface that iscorresponding to an upper surface of the side walls installed inperpendicular to the second frame.
 5. The liquid crystal display deviceas claimed in claim 4 , wherein the supporting member includes a firstfixing member and the second frame has a second fixing member detachablycoupled to the first fixing member.
 6. The liquid crystal display deviceas claimed in claim 4 , wherein the second frame has an inner side,which faces the side wall formed in a first length direction of thefirst frame and in which a first groove is formed in a second lengthdirection of the second frame, and an outer side that forms a symmetricplane with respect to the inner side and in which a second groove isformed in the second length direction of the second frame.
 7. The liquidcrystal display device as claimed in claim 6 , wherein the first groovereceives the light source for generating the light, a light sourcesupporting member for supporting the light source is installed at bothends of the first groove, and the second groove receives a connectingmember that is electrically connected to the light source.
 8. The liquidcrystal display device as claimed in claim 7 , wherein a first portionof the first groove, in which the light source supporting member ispositioned, has a substantially rectangular sectional shape defined by acover portion, a bottom portion and a side portion, an other side of thefirst portion opposite to the side portion being open, a second portionof the first groove in which the light source is positioned is definedby the cover portion and the side portion.
 9. The liquid crystal displaydevice as claimed in claim 8 , wherein a reflection plate is providedbelow the light guiding plate extended to a lower portion of the lightsource.
 10. A container module, comprising: a first frame for receivinga display unit, said first frame including a bottom surface and sidewalls vertically formed at all side peripheral portions of the bottomsurface but one side peripheral portion of the bottom surface; and asecond frame for receiving a light source which, wherein said secondframe is detachably coupled to the side peripheral portion of the bottomsurface of said first frame where the side wall is not formed.
 11. Thecontainer module as claimed in claim 10 , wherein an upper portion ofeach side wall has a stepped portion formed towards the bottom surface.12. The container module as claimed in claim 10 , wherein the firstframe includes a supporting member for supporting the second frame, thesupporting member being installed at the side peripheral portion of thefirst frame where the side wall is not formed.
 13. The container moduleas claimed in claim 12 , wherein both ends of the supporting member arevertically bent and extend towards the side wall positioned inperpendicular to the supporting member.
 14. The container module asclaimed in claim 12 , wherein a first fixing part is formed at an upperportion of the supporting member so as to fix the second frame to theupper portion of the supporting member.
 15. The container module asclaimed in claim 14 , wherein the first fixing part is integrally formedwith the supporting member.
 16. The container module as claimed in claim14 , wherein the first fixing part has a fixing projection protruded atthe upper portion of the supporting member and a coupling holeperforating the fixing projection.
 17. The container module as claimedin claim 10 , wherein an upper portion of said second frame has astepped portion formed towards a bottom surface of said second frame.18. The container module as claimed in claim 10 , wherein said secondframe has a first side having a first groove formed in a lengthdirection of said second frame and a second side having a second grooveformed in the length direction of said second frame.
 19. The containermodule as claimed in claim 18 , wherein the first groove has asubstantially rectangular sectional shape defined by a cover portion, abottom portion and a side portion, with a side of the first grooveopposite to the side portion open.
 20. The container module as claimedin claim 19 , wherein a center of the bottom portion is removed.
 21. Thecontainer module as claimed in claim 19 , wherein a reflector forreflecting the light is installed in the first groove defined by thecover portion, the bottom portion and the side portion.
 22. Thecontainer module as claimed in claim 21 , wherein the reflector is madeof polyethylene terephthalate.
 23. The container module as claimed inclaim 18 , wherein said second frame includes a second fixing part forcoupling said second frame with said first frame.
 24. The containermodule as claimed in claim 23 , wherein the second fixing part isintegrally formed in said second frame.
 25. The container module asclaimed in claim 23 , wherein the second fixing member is positionedbelow the second groove.